<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>drop与dropRight</title>
</head>
<body>
  <!-- 
    1. drop(array, count): 
        得到数组过滤掉左边count个后剩余元素组成的数组
        说明: 不改变当前数组, count默认是1
        如: drop([1,3,5,7], 2) ===> [5, 7]
    2. dropRight(array, count): 
        得到数组过滤掉右边count个后剩余元素组成的数组
        说明: 不改变数组, count默认是1
        如: dropRight([1,3,5,7], 2) ===> [1, 3]
  -->
  <script src="../dist/190719-utils.js"></script>
  <script>
    console.log(aUtils.drop([1,3,5,7], 2))
    console.log(aUtils.drop([1,3,5,7], 4))
    console.log(aUtils.drop([1,3,5,7]))

    console.log(aUtils.dropRight([1,3,5,7], 2))
    console.log(aUtils.dropRight([1,3,5,7], 4))
    console.log(aUtils.dropRight([1,3,5,7]))
    
  </script>
</body>
</html>